Extraneous

* should have bumped pipdeptree required version.

* work with pip 18.1, pip 9.0.3. similar problem to naiquevin/pipdeptree105

* normalize package names via PEP503 rules. closes 3

* fix tests on SemaphoreCI/Ubuntu.
* fix coverage missing for a single test.
* add logo.
* fix sub-package being removed despite being in a requirements file.
* fix sub-sub-packages missing from uninstall list.
* change include flag to be a list of additional directories to look for `'*requirements*.txt'` globs in. 2
* change default requirements to use `'*requirements*.txt'` glob from current working directory. 2
* get site-package folder(s) in a way that works with pypa/virtualenv. 1

* fix script for & add tests for editable packages as extraneous and as required.
* fix coverage of tests.

* fix verbose site-packages text not working on semaphore.
* remove` __init__` importing things with requirements so setup can get the version number without additional packages being installed...